Complete the pattern: 21VN, 32TX, 43QS,

The pattern comes from a culture test online (in French). Some questions are actually about mathematics/logic. I absolutely do not understand this one, though, given the others questions it should be something extremely trivial

Question: Complete the pattern: 21VN, 32TX, 43QS, 54??

a. FE b. DE c. CE d. GE

c. CE

The solution is based on

The first and last letters of the number.

Examples:

Vignt et un, Trente-deux, Quarante-trois, Cinqante-quatre

• Gah damn u lol oh well
– PDT
Nov 30, 2023 at 18:15
• waaaah and I was stuck in thinking like TX maybe it means TeXas? QS maybe Quebec-related?
– Qise
Nov 30, 2023 at 18:23

the pattern is based on the first and last letters of the French names of the numbers.

"21VN" corresponds to "vingt et un" (21), taking the first and last letters gives "VN." "32TX" corresponds to "trente-deux" (32), taking the first and last letters gives "TX." "43QS" corresponds to "quarante-trois" (43), taking the first and last letters gives "QS." Applying the same pattern to "54" gives "cinquante-quatre," and taking the first and last letters gives "CE."